"Johnny is technically in remission, thank God," the 48-year-old Las Vegas illusionist, who was born Christopher Nicholas Sarantakos, said in an interview with Us Weekly. "I believe he will be healed."

While Angel's young son has fought back against the illness, he's reportedly still undergoing chemotherapy, blood transfusions and spinal taps. Johnny is receiving medical care in Australia where he lives with his mom, Shaunyl Benson.

"What doctors found is you have to continue treatment to kill all the cells, as there is no guarantee," Angel explained.

Since his son's diagnosis, Angel has begun championing cancer research organizations, and is currently promoting a benefit show, Heal Every Life Possible, at the Luxor casino on Sept. 12. The event aims to raise money for pediatric cancer research and treatment.